Attachment for plows.



C. F. GARLSON.

ATTACHMENT FOR FLOWS.

APPLICATION FILED DBO. 27, 1919.

Patented May 19, 1914.

2 SHEETS-SHEET 1.

03A INVENTOR. M

COLUMBIA FLANOGRAPH cm. WASHINGTON. D. C.

O. F. GARLSON.

ATTACHMENT FOR FLOWS.

APPLICATION FILED DEC. 27, 1913.

1,097,299. Patented May 19, 1914.

2 SHEETS-SHEET 2.

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INN! ll lHllllII lllllllll /6 76 1 Wm "Hm I 16 j 1 WITNESSES I COLUMBIAPLANOGRAPH CONWASHING T cv UNITED STATES PATENT OFFICE.

CHARLES F. cARLsoN, or SOUTH BEND, INDIAN ASSIGNOR ro OLIVER GHILLEDPL'o-w WORKS, OF SOUTH BEND, INDIANA.

ATTACHMENT FOR PLOWS.

Specification of Letters Patent.

Patented May 19, 1914.

To all whom it may concern Be it known that I, CHARLns F. GARLsoN, ofSouth Bend, in the county of St. Joseph and State of Indiana, haveinvented certain new and useful Improvements in Attachments for Flows;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in attachments for plows and moreparticularly to adjustable clamping devices for connecting the roundshank of a colter or jointer with the beam of a plow,the object of theinvention being to provide simple and efiicient clamping devices for thepurpose stated, having various adjusting means for facilitating thecorrect positioning of the colter, especially the accurate adjustment ofthe colter or jointer to efiect the correct width of out, with respectto the plow body employed.

With this and other objects in view, the invention consists in certainnovel features of construction and combinations of parts as hereinafterset forth :and pointed out in the claims.

In the accompanying drawings; Figure l is a view showing the applicationof my invention to a plow beam; Fig. 2 is a sectional view on the linemo9 of Fig. 1; Fig. 3 is a sectional view on the line yy of Fig. 1, andFigs. 4: and 5 are detail views.

My improved clamp comprises a base plate 1 seated against one side of aplow beam 2 and having sufficient height or length to project above andbelow said beam. The upper and lower orojecting portions of the plateare provi ed with holes for the free passage of bolts 3, 3, having headsto rest against the front face of the plate. These bolts are disposedabove and below the plow beam and pass-through holes in a clamping bar41: disposed against the rear side of the plow beam, the free ends ofsaid bolts being threaded for the reception of nuts 5 which bear againstthe outer face of the clamping bar 4:. By these means, the base plate 1may be secured at the proper position on the plow beam.

The base plate is provided on its outer side with parallel flanges 6, 6,between which a block 7 is disposed, said block having a curved seat 8for the reception of the round shank 9 of a colter or jointer. The block7 is provided on its back with a pintle 10 which loosely enters a socket11 in the base plate to prevent displacement of said block, and betweensaid pintle and one end of the block, the back of the latter is madewith a ameter than the diameter of the bolts 13' and the heads 15 onsaid bolts are seated and movable in sockets or recesses 16 made in therear face of the base plate 1. The outer ends of the bolts pass throughthe end portions "of a clamping plate 17, and said bolts are threadedfor the reception of nuts 18.

which bear against the outer face of the clamping plate 17. The innerside of the clamping plate 17 is made with a curvedseat 19 for itsaccommodation to the round shank of the colter, and said clamping plateis also provided with an integral rib or key 20 to enter a groove in thecolter shank.

At its upper left hand corner, the base plate 1 is made with a lug 21,through which a vertically disposed adjusting screw 22 passes andengages the upper side of the plow beam. A lug 23 is formed at the upperedge of the base plate and through this lug, a horizontal adjustingscrew 24 passes and engages the block 7.

By loosening the nuts on the bolts 13 (thus loosening the clamping plate17), the colter shank may be adjusted vertically and at such time, theblock 7 will be prevented from dropping out by engagement of the pintle10 with the socket 11 in the base plate. iVith the key 20 of clampingplate 17 engaging the groove in the colter shank, and by loosening thebolts 13, the colter shank may be twisted in the block 7, and the colterthus be adjusted in correct line of draft when used on a beam landedeither for two or three horses. By loosening the bolts 3 and adjustingthe screw 22, a fore or aft adjustment of the collar may be efiected. Bymeans of the screw 2 1, the block 7 may be rocked on its bearing againstthe base plate, to eifect lateral adjustment of the colter so as tocause the latter to cut the correct width with relation to the plow bodyemployed.

My improvements are simple and compact in construction; will readilypermit the various adjustments of the colter, and will hold the coltershank firmly in position when adjusted.

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent, is

1. The combination with a base plate and means for clamping the same toa plow beam, of a block mounted to rock on said base plate and having ashank receiving seat, a clamping plate having a shank receiving seat,means securing the clamping plate to the base plate, and an adjustingscrew pass ing through the base plate and engaging the block for rockingthe latter.

2. The combination of a base plate having parallel flanges, means forsecuring said base plate to a plow beam, a block disposed betweenand-guided by said flanges and having a rocking bearing on the baseplate, a clamping plate, said block and clamping plate having shankreceiving seats, means for securing the clamping plate to the baseplate, and means carried by the base plate and engaging said block forrocking the latter.

3. The combination with a base plate and means for clamping the same toa plow beam, of a block mounted on the base plate and provided with apintle engaging the base plate, a clamplng plate, means connecting theclamping plate with the base plate, said block and clamping plate havingshank receiving seats, and means for effecting rocking adjustment ofsaid block.

4:. The combination with a base plate and means for clamping the same toa plow beam, of an adjusting screw carried by the base plate and adaptedto engage the top of the beam, a block mounted to rock on said baseplate, a clamping plate, means connecting said clamping plate with thebase plate, said block and clamping plate having shank receiving seats,and an adjusting screw carried by the base plate and engaging the blockto rock the latter.

5. The combination with a base plate, a shank and means for securing thebase plate to a plow beam, of a block mounted on said plate, a clampingplate, said block and clamping plate having seats to receive the shank,a key carried by said clamping plate to engage in a groove in saidshank, and adjustable means connecting the clamping plate with the baseplate independently of the securing means for the base plate to thebeam.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

OHARLES F. CARLSON. Witnesses:

EDWIN NIOAR,

KATE E. BUCKLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

